Date: Sun, 29 Jan 2012 00:41:08 +0000 (UTC) From: Marius Strobl <marius@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-8@freebsd.org Subject: svn commit: r230696 - stable/8/sys/kern Message-ID: <201201290041.q0T0f8iF007504@svn.freebsd.org>
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Author: marius Date: Sun Jan 29 00:41:08 2012 New Revision: 230696 URL: http://svn.freebsd.org/changeset/base/230696 Log: MFC: r226175 In device_get_children() avoid malloc(0) in order to increase portability to other operating systems. PR: 154287 Modified: stable/8/sys/kern/subr_bus.c Directory Properties: stable/8/sys/ (props changed) stable/8/sys/amd64/include/xen/ (props changed) stable/8/sys/cddl/contrib/opensolaris/ (props changed) stable/8/sys/contrib/dev/acpica/ (props changed) stable/8/sys/contrib/pf/ (props changed) Modified: stable/8/sys/kern/subr_bus.c ============================================================================== --- stable/8/sys/kern/subr_bus.c Sun Jan 29 00:40:39 2012 (r230695) +++ stable/8/sys/kern/subr_bus.c Sun Jan 29 00:41:08 2012 (r230696) @@ -2176,6 +2176,11 @@ device_get_children(device_t dev, device TAILQ_FOREACH(child, &dev->children, link) { count++; } + if (count == 0) { + *devlistp = NULL; + *devcountp = 0; + return (0); + } list = malloc(count * sizeof(device_t), M_TEMP, M_NOWAIT|M_ZERO); if (!list)
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